Ratio And Proportion Test

Result

Ratio And Proportion Test - 2

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Weekly Quiz Competition

Question 1
3 / -1

The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

A
8 : 9

B
17 : 18

C
21 : 22

D
Cannot be determined

Solution
Question 2
3 / -1

Salaries of Ravi and Sumit are in the ratio 2 : 3. If the 'salary of each' one of them is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?

A
Rs. 17,000

B
Rs. 20,000

C
Rs. 25,500

D
Rs. 38,000

Solution
Question 3
3 / -1

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?

A
3 : 3 : 10

B
10 : 11 : 20

C
23 : 33 : 60

D
Cannot be determined

Solution
Question 4
3 / -1

If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?

A
2 : 5

B
3 : 7

C
5 : 3

D
7 : 3

Solution
Question 5
3 / -1

The fourth proportional to 5, 8, 15 is:

A
18

B
24

C
19

D
20

Solution
Question 6
3 / -1

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?

A
50

B
100

C
150

D
200

Solution
Question 7
3 / -1

Two number are in the ratio 3 : 5. If 9 is subtracted from each number, the new numbers are in the ratio 12 : 23. The smaller number is:

A
27

B
33

C
49

D
55

Solution
Question 8
3 / -1

If 0.75 : x :: 5 : 8, then x is equal to:

A
1.12

B
1.2

C
1.25

D
1.30

Solution
Question 9
3 / -1

The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:

A
20

B
30

C
48

D
58

Solution
Question 10
3 / -1

In a garrison of 3600 men, the provisions were sufficient for 20 days at the rate of 1.5 kg per man per day. If x more men joined, the provisions would be sufficient for 12 days at the rate of 2 kg per man per day. Find x.

A
600

B
800

C
900

D
720

Solution

Let x be the number of new men joined the garrison,
The total quantity of food is = 3600(20) (1.5) kg ----------1
Now the available food will be consumed by (3600 + x) men
(3600 + x) (12) (2) kg --------------2
1 = 2
Solving both the equations
3600(20) (1.5) = (3600 + x) (12) (2)
108000 = 86400 + 24x
21600 = 24x
X = 900
900 more men joined the garrison.